package main

import (
	"fmt"
	"log"
	"net/http"
)

func main() {
	http.HandleFunc("/", func(writer http.ResponseWriter, request *http.Request) {
		writer.Write([]byte(fmt.Sprintf("hello world, v%.1f", 1.0)))
	})
	log.Printf("server started at 0.0.0.0:8080")
	http.ListenAndServe("0.0.0.0:8080", nil)
}
